<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>my form</title>
</head>
<body>
<form action="http://www.kuaidi100.com/query" target="_blank">
    <input type="radio" name="type" value="youzhengguonei"> <label>邮政</label>
    <label><input type="radio" name="type" value="zhongtong">中通</label>
    <input type="radio" name="type" value="shentong" id="st"><label for="st">申通</label>
    <input type="text" name="postid" placeholder="单号">
    <input type="submit" value="查询">
</form>

<hr>
<form action="http://www.kuaidi100.com/query" target="_blank">
    <input type="text" name="type" placeholder="快递公司">
    <input type="text" name="postid" placeholder="单号">
    <input type="submit" value="查询">
</form>

<hr>
<form action="https://www.sogou.com/web" target="_blank">
    <input type="text" placeholder="搜索关键字" name="query">
    <input type="submit" value="搜狗搜索">
</form>
<hr>
<form action="http://cn.bing.com/search" target="_blank">
    <input type="text" name="q">
    <input type="submit" value="必应搜索">
</form>
<hr>
<form action="https://www.baidu.com/s" target="_blank">
    <input type="text" name="wd">
    <input type="submit" value="百度搜索">
</form>
</body>
</html>